fbiassistantdirector tom fuentes is extremely knowledgeable about how this kind of investigation can unfold and how it can change over time. he joins us this morning from washington. good morning. what do you make of david petraeus' appearance on the hill. did lawmakers get the answers they were looking for? >> i think they got many of the answers. it is hard to unravel that entire incident in just a short period of time. so, it make take more explanations in a wider group of officials to come in and comment on it. but, you know, so much has been made about his appearance or his resignation prior to testifying and, you know, it's been, you know, it's been interesting because those committees can subpoena him or anybody else any time they want. it is not like he was suddenly inaccessible by retiring or leaving his position with the cia. as far as the investigation goes, that's still going to continue and still going to continue to take time and i think part of the discussion is just the sematic difference here. well, it was an act of terrorism, no doubt of that. but a terrorist act ca

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